English

What Are Chromosomes? Why Are They Called So? - Biology

Advertisements
Advertisements

Question

What are chromosomes? Why are they called so?
Short Note

Solution

Chromosomes are the thread like structures or chromatin material present inside the nucleus.
Chromosomes are so called because they take up certain basic dye and stain very rapidly. The word chromosome comes from two words "chromos" meaning colour and "soma" meaning body.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Structure of Chromosomes - Exercise 1 [Page 20]

APPEARS IN

Frank Biology [English] Class 10 ICSE
Chapter 2 Structure of Chromosomes
Exercise 1 | Q 4 | Page 20

RELATED QUESTIONS

Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase


Name the sex chromosomes in human males and females


Correct the following statement if there is any mistake: 

If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.


State the difference between: 

Chromosome and chromatid:


During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.


Answer the following question in your own words. 

What is meant by ‘chromosome’? 


Chromosomes are mainly made up of ______.


Choose the correct answer:
Chromosomes number is halved in _____________


Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________


Choose the correct answer:
If after karyokinesis, cytokinesis does not occur, then result would be _____________


Mention the contribution of the scientist given below in the study of chromosome:

Balbiani


Choose the correct answer:
The term 'chromosome' was coined by ___________


Explain the Term Centrioles


Complete the following sentence with appropriate word  :

Polytene chromosomes are found in _________ of fly larvae.


Multiple Choice Question:

The period between two successive mitotic divisions is


Give Reason:

 The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.


Name the following:

Pairs of chromosomes, present in human egg cells.


Very Short Answer Question.

What is allosome?


The sex of the newborn child is a matter of chance and neither of the parents may be considered responsible for it. What would be the possible fusion of gametes to determine the sex of the child?


Distinguish between the following pair:

Karyotype and Karyokinesis


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×